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| BS1806-006 | K7766 | BRITISH STANDARDS INSTITUTION |
| DEFSTAN02-337-006-HN90 | K0851 | MINISTRY OF DEFENCE DIRECTORATE OF STANDARDIZATION STAN 1 |
| NES 337 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-006-HN90 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| NES 337-1984 | K2516 | MINISTRY OF DEFENCE NAVY SHIPS SUPPORT AGENCY |
| T22S031248 | KC6K3 | LEAFIELD LOGISTICS & TECHNICAL SERVICES LIMITED |
| NES337-006-HN90-(N93H) | U6183 | PRECISION POLYMER ENGINEERING LIMITE |